Comparison

M.ETRO vs Saucillator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

M.ETRO

Features
Read full description

M.ETRO is a really light metronome. Swipe up or down (or touch) to increase or decrease BPMs. Tap on BPMs in the center to make metronome start. That's it, stop. Goodbye.

About

Saucillator

Create and play custom synthesizers and instruments on your mobile device. Manipulate oscillators and effects with touch, record live loops, and design unique sounds with a variety of timbres and customizable effects. Supports AUv3 for use in other music production apps.

Highlights
  • Custom synthesizer creation
  • Touchscreen oscillator manipulation
  • Live looping and recording
  • AUv3 instrument support
  • Multi-track looper and beat generator
  • Parametric EQ and filters
  • MIDI controller support
Features
Read full description

Musical inspiration at the touch of your fingertips - from doodle to zen in seconds. Inspired by the Korg Kaossilator and Moog synthesizers, Saucillator transforms mobile devices into a platform for creating, playing, and sharing digital synthesizers. Users use the touchscreen to manipulate oscillators and effects, and can also do live-looping and recording. Our goal is to be beginner friendly while at the same time offering all the deep, complex features traditional synth users love. Saucillator also now supports AUv3 so you can use many of its features in AUv3-supported host applications (tested with AUM, Loopy Pro, Garageband. Note that some host applications only support some output). A multi track looper and beat generator are available to create synth loops and synchronize a beat/click track alongside it. Loops can be modified, toggled, and added as you're playing. Users are able to play custom modular synthesizers using the x-y axes of the touchscreen. The x-axis corresponds to amplitude (volume) and the y-axis corresponds to frequency (pitch). Playback can also be looped, recorded, and EQed using a Parametric EQ. On top of performing, users are able to create their own custom synthesizers, which consist of a custom timbre and user-defined effects. A variety of timbres are included: Sine, Square, Saw, Pulse, Noise, Theremin, "Singing Saw", "Electric Eel", and "Starslide" (among many more). These, as well as any user-created synths, can be mixed and matched at different harmonics, amplitudes, and phases to create custom sounds. Each synth has customizable fx parameters as well, including Envelope (ADSR - attack & release), Vibrato LFO (rate & depth), Tremolo, Reverb, Delay, Chorus, Distortion, Parametric EQ, and Note Lag (Portamento). We also include a Filter (low-pass, highpass, bandpass) that can be modulated using an Envelope or LFO. Custom synths can also be shared with the Saucillator community via an easy built-in sharing tool. Download other users' synths or upload your own, all from in app! Other abilities: -Choose scale: Pentatonic, Major, Minor, Blues, or Chromatic (among others). -Choose the base note for the pad. -Control the grid size. -Record to disk. -Live visualization of waveforms. -Play synths with external midi controllers -AUv3 instrument support Special thanks to Garrett Langley (http://dribbble.com/glangley) for helping with design and general usability. Saucillator. I think it's the sauce, boss!

Screenshots

M.ETRO1 screens
Saucillator4 screens

Verdict

The call

The clearest difference is update cadence: M.ETRO at every 3 days against Saucillator's every 8 days. M.ETRO also leads on iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

M.ETRO ships an update every 3 days, Saucillator every 8 days. The most recent releases landed on August 15, 2026 and August 25, 2026 respectively.

Scorecard2 real differences · 8 level
M.ETRO versus Saucillator: the parameters behind the verdict, then further details
ParameterM.ETROSaucillator
PriceFreeFree
Rating—4.9 (33 ratings) — better
Positive reviews—92.3% of reviews
Number of ratings—33 — better
Update frequencyEvery 3 days — betterEvery 8 days
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size17 MB93 MB
Age rating4+4+
DeveloperPaolo GiorgiGreen Noise LLC

In-app purchases

None

M.ETRO

No in-app purchases

None

Saucillator

No in-app purchases

Questions

Is M.ETRO free?
M.ETRO is free to download, with no in-app purchases.
Is Saucillator free?
Saucillator is free to download, with no in-app purchases.
Do M.ETRO or Saucillator have ads?
Neither M.ETRO nor Saucillator shows ads.
Which is updated more often, M.ETRO or Saucillator?
M.ETRO ships an update every 3 days, and Saucillator every 8 days. Most recently, M.ETRO was updated on August 15, 2026 and Saucillator on August 25, 2026.

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